Traction-engine driving-wheel



UNITED STATES PATENT OFFI E.

KONRAD SOHAEFER, OF MILFORD, MASSACHUSETTS.

TRACTION-ENGINE DRIVING-WHEEL.

SPECIFICATION forming part of Letters Patent No. 243,463, dated June 28, 1881.

Application filed December 22,1880.

To all whom it may concern 7 Be it known that I, KONRAJ) SCHAEFER, a citizen of the United States, residing at Milford, in the county of 'Worcester and State of Massachusetts, have invented a new and useful Traction-Engine Driving-Wheel, of which the following is a specification.

My invention relates to improvements in traction-Wheels in which spokes and feet take the place of the wheel and the objects of my improvements are, first, to provide feet so ar ranged that the bearing-surfaces do not follow each other in one continuous line; second, as the bearing-surface of the wheel is liable to slip its entire length of circumference, the sectional alternate arrangement, where the bearing-surface of each foot must strike on new ground, will-obviate slipping. I attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure I is a side elevation with single and double spokes to each foot; Fig. 2, a front elevation, showing the alternate parallel arran gement of the feet; Fig. 3, a perspective view of the two sets of feet secured parallel to each other on the same axis.

Similar letters refer to similar parts throughout the several views. 7

The feet A at one extremity of spokes B,

(No model.)

which are secured in the hub 0, leave interspaces in the circumference or bearing-surface of the wheel. To provide for bearing-surface for the interspaces I secure a similar set of feet parallel to the other set, so that they furnish .thebearing-surface, leavin g si milar in ters paces to be covered by the previous set of feet, causing the appearance of alternate rotary stepping.

One hub may hold the parallel sets of spokes and feet; but to facilitate the casting of the same in metal I use separate hubs (J 0, Fig. 3, for each set, which are secured to the same axis 6 e. To insure greater strength a brace, d, is secured between the spokes of the same set.

I claim- A traction-wheel composed of two or more sets of feet and spokes, A B, attached to a hub or hubs, O, and arranged in planes parallel to each other, with the hearii'ig-surfaces of each set of feet acting alternately with the other set, substantially as and for the purpose set forth.

KONBAD SOHAEFER. Witnesses:

LEANDER HOLBROOK, J r., LEANDER HOLBROOK. 

